20921784790

素因数分解:

$2^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{10840303}}^1$

素因数の和:10840503

約数の個数: 16

約数和(自身を含む): 37854341568

約数和(自身を除く): 16932556778

約数列:

[1, 2, 5, 10, 193, 386, 965, 1930, 10840303, 21680606, 54201515, 108403030, 2092178479, 4184356958, 10460892395, 20921784790]

約数ペア:

[(1, 20921784790), (2, 10460892395), (5, 4184356958), (10, 2092178479), (193, 108403030), (386, 54201515), (965, 21680606), (1930, 10840303)]